George haseltine



UNITED sTATEs PATENT oEEroE.

i GEORGE HASELTINE, OF WASHINGTO,v DISTRICT OF COLUMBIA.

MACHINE FOR PUNCI-IING AND SI-IAIPING METALS.'

Specification of Letters Patent No'. 17,876, dated July 28, 1857.

l To all whom 'it may concern:

Be it known that I, GEORGE HAsELTINE,

of Washington, in the District of Columbia,

have invented a new and Improved Machine for Punching and Sha ingMetals; kand I do hereby'V declare that t e following is a full,

f clear, and exact description of the construction and operation of thesame, reference being had to the annexed drawings, making a part of thisspecification, in which- Figure 1 is a front view. Fig. 4 a horizontalsection through the line z z Fig. 1. Fig. 2

' a vertical section through the line x x Fig. 4.v

attached. c Fig. 1 is the cam which moves the frame C Fig. 1. The slidese e Fig. 1 connect the wedge cams s s Fig. 1 with the said frame C. cFig. 1 is the open side of the die box.

D, Fig. 2 is the frame to which is iixed the mandrel j. d, Fig. 2 is thecam which operates the said frame D. a a Fig. 2 are the grooves, inwhich the frame E E Figs. 1 and open-side c Fig. 1.

2, moves. h, Fig. 2 is the cam which gives the downward movement to thesaid frame AE E. a Figs. 1, 2 and 3 is the spring which gives the upwardmovement to the said frame E, E. b Figs. 1, 2, and 3, is the upper punchwhich is attached to the said frame E, E. h Figs. 2 and 3 is the lowerpunch which is attached to the mandrel j Figs. 2 and 3. y g Fig. 2 isthe bed on which rests the spring i Figs. 1 and2. On the said spring'I'.rests the bottom of the die box. Z Figs. 3 and 4 is a rod which ismoved in one direction by the cam yin Fig. 3 and in the oppositedirection `by the spring p, Fig. 4. v Fi s. 2k and 4 is a sideof. thedie box, opposite t e H, Fig. 3 is the shaft to which the cam c Fig. 1and the cams d and 7c Fi l. 2 are fixed. G, Fig. 3 is awheel hung Aon te said shaft I-I. L L Fig. 4 are the horizontal dies, t t are the sidesof the grooves in which the said dies move.v S, S, Fig. 5 are a side andfront view of the wedge cams s, s, Fig. 1.A Fig. 6 is a disk punch.

The nature of my invention-My invention consists in the employment of.dies and` C Fig. 1 the frame to which the plate B, Fig. 1 is` punches,so arranged and operated that the required metal is cut from the bar orrod, shaped and punched without waste of material and the completedarticle discharged from the die box at every revolution of the shaft. iThe machine represented by the drawings is designed especially for themanufacture of metallic screw-nuts of any equal number of sides. But bychanging the form of the die box merely my invention is equally adaptedfor the manufacture of all similar articles. The articles I haveespecially in view are ax polls and hammers. And my invention is chieflydesigned for the manufacture of articles which require both shaping andpunching, but a machine may be constructed as to be easily adapted toeither of these processes separately.

My object is to make articles of any number of sides from ordinaryhexagonal pieces of metal and to perforate them when desired, withoutany waste of material, the completed article weighing the same as thesaid pieces of metal of which the article is made.

onstruction and operation-The frame A, A, Figs. 1 and 2, may beconstructed of any material, having sufcient strength, and of any formwhich is found convenient. It may be placed in av horizontal as well asa vertical position. I make use of the ordinary mechanical devices foroperating the parts which need no description. These devices may bevaried without changing the character of my invention, but they shouldbe so constructed and related to each other asv to perform properly theoperations required.

The bar or rod of metal being properly heated is fed into the die box OFig. 4 by hand through the open side c Fig. 1. O Fig. 4 is a die boxwith six lateral surfaces and the ordinary flat or square bar is used.The dies L L Fig. 4 are slightly withdrawn to admit a bar of sufiicientwidth to form the article required. The bar is fed into the die boxthrough the side c Fig. 1 till the end strikes the opposite side of thedie box v Fig. 2. Then the plate B Fig. 1, advances and cuts thequantity of metal required from the bar. The said plate B, also forms aside of the die box while the metal is being shaped and punched. As soonas the bar is severed then the dies L L Fig. 4 advance giving inconnection with the other sides of die box the required number of sidesto the article being shaped. The plate B Fig. 1 and the wedge cams s sFigs. 1 and 5 are operated by the cam c Fig. 1. The motion of the dies LL Fig. 4 which is yproduced by the wedge cams s s Fig. 1, shouldcommence, at or about the time the plate B, Fig. 1, has severed the barof metal. The cam c Fig. 1 should be so formed that the saw plate B andthe dies L L Fig. 4, will immediately recede on the completion, of thearticle being formed. The prolongation of the line of the plate B Fig. 1and the prolongation of the side of the die box opposite o Fig. 2 formthe sides of the groove t t Fig. 4.

The dies L L Fig. 4 move in grooves of which t t Fig. 4 are the sides.rlhe dies L L Fig. 4 are constructed with two faces each but these maybe indefinitely increased as required. I design these said dies to formall the sides of the article being shaped less four.

Either the top or the bottom of the die box should be yielding. Thedrawings show the bottom yielding and the top stationary. In case theplate B Fig. 1 cuts the bar by an upward action as shown then the topshould be stationary. But the said plate B may be operated in anopposite direction or horizontally as is found most convenient.

The required number of sides having been given to the article in the diebox by the dies L L Fig. 4, these dies remain stationary while theoperation of punching is performed, if a perforation is desired; if notthe said dies immediately recede as well as the plate B, Fig. 1, and thearticle is discharged from the die box. If found desirable however, themotion or action of the punches may precede the action of the dies L LFig. 4 or their actions may be simultaneous. I prefer rst shaping theexterior.

I make use of two punches b and n Figs. 2 and 3, which are operated inopposite directions by the cams h and fi, Fig. 2. For making metallicscrew nuts I use two cylindrical pointed punches or one may be a diskpunch as seen in Fig. 6. In making ax polls and hammers I use punchescorresponding with the shape of the required perforation but one atleast should taper at the end which enters the metal. The said punches tand fn, enter the metal consecutively or with unequal velocities so thatone does its work and retires while the other completes the perforation.Where two pointed punches are used one passes nearly through and thenrecedes while the other enters from the opposite side and proceeds asfar as necessary to complete the perforation. In this manner theperforation is perfected without leaving any bur on the surfaces orcausing any waste of material. In case a disk punch is used inconnection with a pointed one then the former should precede the latterin its action. The punches by their action, do not increase the numberof sides given to the article by the dies L L Fig. 4, but the metalvwhich is displaced by the punches must enlarge those sides or someportion of them. To accommodate the die box to this enlargement andespecially to prevent any straining of the machine n case a surplus ofmetal-is fed into the die box one or more sides of the die box should beslightly yielding. In the drawings the bottom O Fig. 4 rests on thespring in Figs. 2 and 3. The dies L L Fig. 4 may be yielding if moreconvenient or more desirable.

The article when completed is forced out of the box O Fig. 4 through theside it was admitted, by the rod l Figs. 8 and 4, which is operated bythe cam m on the wheel G, Fig. 3 in connection with the spring p Fig. 4,the plate B Fig. l and also the dies L L Fig. 4 and in some cases thetop or bottom of the box, having receded and left the article free.

It may be necessary to withdraw the bottom of the die box when the undersurface of the article shaped is irregular, which is done by means of acam on the shaft H Fig. 3 but not shown in the drawings.

I do not confine myself to this mode of discharging the manufacturedarticles as it `may be more convenient to discharge them on the oppositeside or through the bottom of the box.

In manufacturing screw nuts, I make use of a sunken die for forming theunder surface of the nuts of such a form as to produce on the nuts aslight circular elevation, of such width as may be desirable, to avoidthe labor of turning off the under surfaces of the corners, which is nowfrequently done.

In case I desire to manufacture articles of the same number of sides andof the same general form as the metal used, then the dies L L, Fig. 4may be made stationary for the time. If a machine is designed entirelyfor the manufacture of ordinary four sided screw nuts, then stationarysides of the box may take the places of the dies L L, Fig. 4.

I have said that the plate B Fig. 1, which forms one side of the diebox, while the article is being shaped and punched, and the plateforming the opposite side of the die box should both extend beyond thelimits of the box and form two sides of the groove, in which groove thedies L L Fig. 4 move. The thickness of the dies L L Fig. 4 is the sameor nearly the same as the height of the box, before the metal isintroduced. In case the top or bottom ofthe die box is yielding asdescribed, then the top or bottom may recede beyond the upper or lowersurfaces of the dies L L, Fig. 4.

The top or bottom of the die box should be stationary while the metal isshaped and punched, and the plate forming said stationary top or bottomalso extends beyond the limits of the die box and forms an additionalside of the groove in Which the dies L L Fig. 4 move. The said diesshould be made so as to completely ll the groove, three sides of whichat least are formed by the extension of the sides ofthe die box asbefore described.

Having thus fully described the construction and operation of myinvention, what I claim as new and desire to secure by Letters Patentis 1. I claim the punch b in connection With the punch n constructed andoperated as described.

2. I claim the movable dies L L, When used in combination with tWopunches b, n; for the purpose and in the manner substantially as 15 setforth.

GEORGE HASELTINE. Witnesses Trios. J. ONEAL, ALEXANDER S. STEUART.

